CN211865826U - A double-shaft double-rotor powder separator - Google Patents

Abstract

The utility model belongs to the technical field of powder separators, and specifically discloses a double-shaft double-rotor powder separator, which comprises a powder separator box, a plurality of cyclone cylinders are tangentially connected to the powder separator box, and the bottom of the powder separator box is two cones. A first discharge port, an installation platform is provided at the bifurcation of the first discharge port, a first speed regulating motor is arranged in the middle of the installation platform, and a first vertical spindle is connected above the first speed regulating motor. The first rotor, an inner cone is arranged below the first rotor, the inner cone is connected with the second outlet through a medium and coarse powder pipeline, the top of the powder concentrator is provided with a second speed regulating motor, the A second rotor and a spreading disc are connected below the second speed regulating motor through the second vertical spindle. The utility model realizes the faster and more efficient powder selection effect of the powder classifier by arranging two rotors connected with different speed regulating motors in the powder classifier.

Description

A double-shaft double-rotor powder separator

technical field

The utility model belongs to the technical field of powder separators, in particular to a dual-shaft dual-rotor powder separator.

Background technique

The double-rotor powder separator is a kind of mechanical equipment used in cement production. It can screen and select the cement and remove the large solid granular impurities doped in the cement. Efficiency of cement processing.

In the existing dual-rotor powder separator, generally, the two rotors are rotated at the same speed or the two rotors are rotated at a certain speed ratio, which cannot completely realize the classification of materials with different particle sizes.

Utility model content

The problems solved by the utility model are: the two rotating speeds of the existing double-rotor powder separator are consistent or the rotating speed ratio is unchanged, and the sorting efficiency is not high. Rotor separator.

The utility model is realized by the following technical solutions. A double-shaft double-rotor powder separator includes a powder selection box, a plurality of cyclone cylinders are tangentially connected to the upper end of the powder selection box, and the bottom of the powder selection box is two cones. A first discharge port, an installation platform is provided at the bifurcation of the first discharge port, a first speed regulating motor is arranged in the middle of the installation platform, and a first vertical spindle is connected above the first speed regulating motor. The first rotor, an inner cone is arranged below the first rotor, the inner cone is connected with the second outlet through the medium and coarse powder pipeline, and the side of the powder concentrator is lower than the inner cone with an inlet. A tuyere, the top of the powder concentrator is provided with a second speed regulating motor, and a second rotor and a spreading disc are connected below the second speed regulating motor through a second vertical spindle.

Further, the first rotor includes an upper ring plate, a lower ring plate, an upper rotor blade and a lower rotor blade. The upper ring plate, the upper rotor blade, the lower rotor blade and the lower ring plate are connected by hinges in sequence, the end of the first vertical main shaft is provided with a retractable inner shaft, and the upper ring plate and the inner The shaft is fixedly connected by the upper connecting rod, the lower ring plate and the first vertical main shaft are fixedly connected by the lower connecting rod, and the relative position of the upper ring plate and the lower ring plate is changed by the expansion and contraction of the inner shaft, thereby changing the upper rotor The effective grading area formed when the blade and the lower rotor blade rotate. When the area is larger, the number of grading cycles of medium and coarse powder and coarse powder will be more, and the more fine powder will be contained in it, and the powder selection efficiency will be higher. The smaller the area, the fewer the grading cycles, which improves the speed of powder selection, so it can be adjusted according to the needs of the site.

Further, the first rotor has an inverted cone shape, the diameter of the upper ring plate is larger than the diameter of the lower ring plate, and the upper rotor blades are shorter than the lower rotor blades.

Further, the inner shaft is connected with an electric push rod fixed in the first vertical spindle.

Further, the first vertical main shaft passes through the medium and coarse powder pipeline. In order to prevent the leakage of medium and coarse powder, the medium and coarse powder pipeline includes a vertical pipe and an inclined pipe, and the inclined pipe is connected to the first vertical pipe. A horizontal installation hole is arranged at the contact point of the main shaft, and a trapezoidal groove and a sealing felt ring are arranged in the horizontal installation hole.

Further, in order to prevent the medium and coarse powder pipeline from being blocked, several scrapers are installed on the circumference of the first vertical main shaft, and the scrapers are located above the horizontal installation holes.

Further, in order to ensure the high powder separation efficiency of the second rotor, the second rotor is a cage rotor, and the outer side of the second rotor is provided with air guide blades that are fixedly connected to the powder separation box.

The beneficial effects of the present utility model are:

1. The present utility model provides a dual-shaft dual-rotor powder separator. The powder separator is provided with two rotors, a first rotor and a second rotor. The two rotors are connected to different speed-regulating motors through shafts. Rotating at different speeds, and there is no interference between the two rotors when they rotate, the double-shaft double-rotor classification powder separator can classify the input materials according to two standards, and can classify two particles at one time. diameter grade powder, greatly improving the working efficiency of the powder separator.

2. The first rotor of the present invention includes an upper ring plate, a lower ring plate, an upper rotor blade and a lower rotor blade. The end of the first vertical main shaft is provided with a retractable inner shaft. The relative position of the ring plate and the lower ring plate changes the effective classification area formed when the upper rotor blade and the lower rotor blade rotate. The less fine powder it contains, the higher the powder selection efficiency. The smaller the area, the less the number of grading cycles, thus improving the speed of powder selection. Therefore, it can be adjusted according to the needs of the site, and the applicability is wider.

Description of drawings

Fig. 1 is the structural representation of a kind of dual-shaft dual-rotor powder separator according to the utility model;

2 is a cross-sectional view of the first rotor according to the utility model;

3 is a top view of the upper ring plate installation according to the utility model;

4 is a top view of the installation of the lower ring plate according to the utility model;

5 is a schematic structural diagram of the contact point between the horizontal installation hole and the first vertical spindle according to the present invention.

In the figure: 1 powder selection box; 11 first discharge port; 12 installation platform; 13 inner cone; 14 second discharge port; 15 medium and coarse powder pipeline; 151 riser pipe; 152 inclined pipe; 153 horizontal installation hole; 154 trapezoidal groove; 155 sealing felt ring; 16 air inlet; 2 cyclone; 3 first speed regulating motor; 4 first vertical spindle; 41 inner shaft; 42 electric push rod; 43 scraper; 5 first rotor; 51 Upper ring plate; 52 lower ring plate; 53 upper rotor blade; 54 lower rotor blade; 55 upper connecting rod; 56 lower connecting rod; 6 second speed regulating motor; 7 second vertical spindle; 8 second rotor; 9 sprinkler Material tray; 10 wind guide vanes.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figures 1-5, a dual-shaft dual-rotor powder separator includes a powder selection box 1, the upper end of the powder selection box 1 is tangentially connected with a number of cyclones 2, and the bottom of the powder selection box 1 is two A conical first discharge port 11, a mounting platform 12 is provided at the bifurcation of the first discharge port 11, and a first speed regulating motor 3 is arranged in the middle of the mounting platform 12, above the first speed regulating motor 3 A first rotor 5 is connected through the first vertical main shaft 4, and an inner cone 13 is arranged below the first rotor 5. The inner cone 13 and the second outlet 14 are connected through the medium and coarse powder pipeline 15, so The side of the powder concentrator 1 is provided with an air inlet 16 at a position lower than the inner cone 13, and the top of the powder concentrator 1 is provided with a second speed regulating motor 6. The main shaft 7 is connected with a second rotor 8 and a spreading disc 9 .

In practical applications, the first rotor 5 includes an upper ring plate 51 , a lower ring plate 52 , upper rotor blades 53 and lower rotor blades 54 . There are several upper rotor blades 53 and lower rotor blades 54 . The circumferences of the upper ring plate 51 and the lower ring plate 52 are evenly distributed, the upper ring plate 51 , the upper rotor blade 53 , the lower rotor blade 54 , and the lower ring plate 52 are sequentially connected by hinges. There is a retractable inner shaft 41 , the upper ring plate 51 and the inner shaft 41 are fixedly connected by an upper connecting rod 55 , and the lower ring plate 52 and the first vertical spindle 4 are fixedly connected by a lower connecting rod 56 , the relative position of the upper ring plate 51 and the lower ring plate 52 is changed by the expansion and contraction of the inner shaft 41, thereby changing the effective grading area formed when the upper rotor blade 53 and the lower rotor blade 54 rotate. The more grading cycles of coarse powder and coarse powder, the less fine powder it contains, and the higher the efficiency of powder selection. On-site adjustments are required.

In practical applications, the first rotor 5 is an inverted cone, the diameter of the upper ring plate 51 is larger than the diameter of the lower ring plate 52 , and the upper rotor blades 53 are shorter than the lower rotor blades 54 .

In practical application, the inner shaft 41 is connected with the electric push rod 42 fixed in the first vertical spindle 4 .

In practical application, the first vertical main shaft 4 passes through the medium and coarse powder pipeline 15. In order to prevent the leakage of medium and coarse powder, the medium and coarse powder pipeline 15 includes a vertical pipe 151 and an inclined pipe 152. The inclined pipe A horizontal mounting hole 153 is provided at the contact point between 152 and the first vertical spindle 4 , and a trapezoidal groove 154 and a sealing felt ring 155 are arranged in the horizontal mounting hole 153 .

In practical application, in order to prevent the medium and coarse powder pipeline from being blocked, the first vertical main shaft 4 is provided with several scrapers 43 on the circumference, and the scrapers 43 are located above the horizontal installation holes 153 .

In practical application, in order to ensure the high powder separation efficiency of the second rotor 8, the second rotor 8 is a squirrel rotor, and the outside of the second rotor 8 is provided with wind guide blades 10 and the powder separation box 1 fixed connection.

The working principle of the present utility model:

When using the dual-shaft dual-rotor powder separator, as shown in Figure 1, the material to be sorted is put into the powder selection box 1 through the feeding port, and after being scattered by the spreading disc 10, it encounters an upward air flow, and in the first Under the action of the second rotor 8, the qualified fine powder enters the cyclone 2 with the airflow for collection, the coarse material passes through the first rotor 5, the coarse powder is discharged from the first discharge port 11, and the fine powder passes through the first rotor 5. The lower inner cone 13 is discharged from the second discharge port 14, and the two rotors are connected to different speed-regulating motors through shafts, which can rotate at different speeds respectively, and there is no interference between the two rotors when they rotate. The dual-shaft dual-rotor classifier can classify the input materials according to two standards, and can classify powders of two particle size grades at one time, which greatly improves the working efficiency of the powder classifier.

The first rotor 5 includes an upper ring plate 51 , a lower ring plate 52 , an upper rotor blade 53 and a lower rotor blade 54 . The end of the first vertical main shaft 4 is provided with a retractable inner shaft 41 . Change the relative position of the upper ring plate 51 and the lower ring plate 52, thereby changing the effective classification area formed when the upper rotor blade 53 and the lower rotor blade 54 rotate. The more it contains, the less fine powder it contains, and the efficiency of powder selection will become higher. The smaller the area, the fewer grading cycles, thus improving the speed of powder selection. wider.

To sum up, the utility model realizes the faster and more efficient powder selection effect of the powder separator by arranging two rotors connected with different speed regulating motors in the powder separator.

The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present utility model, and the purpose thereof is to enable persons familiar with this technology to understand the contents of the present utility model and implement them, and not to limit the present utility model by this. In the protection scope of the utility model, all equivalent changes or modifications made according to the spirit of the present utility model shall be covered within the protection scope of the present utility model.

Claims (7)

1. A dual-shaft dual-rotor powder separator is characterized in that: it comprises a powder selection box (1), and the upper end of the powder selection box (1) is tangentially connected with several cyclones (2), and the powder selection box ( 1) There are two conical first discharge ports (11) at the bottom, a mounting platform (12) is provided at the bifurcation of the first discharge port (11), and a first discharge port (12) is provided in the middle of the mounting platform (12). A speed regulating motor (3), a first rotor (5) is connected above the first speed regulating motor (3) through a first vertical spindle (4), and an inner cone is arranged below the first rotor (5) (13), the inner cone (13) is connected with the second discharge port (14) through the medium and coarse powder pipeline (15), and the side of the powder concentrator (1) is lower than the position of the inner cone (13) An air inlet (16) is provided, a second speed regulating motor (6) is arranged on the top of the powder concentrator (1), and a second speed regulating motor (6) is connected below the second speed regulating motor (6) through a second vertical spindle (7). The second rotor (8) and the spreading disc (9). 2. A dual-shaft dual-rotor powder separator according to claim 1, characterized in that: the first rotor (5) comprises an upper ring plate (51), a lower ring plate (52), an upper rotor blade ( 53) and the lower rotor blades (54), the upper rotor blades (53) and the lower rotor blades (54) are several in number, and are evenly distributed along the circumferences of the upper ring plate (51) and the lower ring plate (52), The upper ring plate (51), the upper rotor blade (53), the lower rotor blade (54), and the lower ring plate (52) are sequentially connected by hinges, and the end of the first vertical main shaft (4) is provided with a telescopic An inner shaft (41), the upper ring plate (51) and the inner shaft (41) are fixedly connected by an upper connecting rod (55), and the lower ring plate (52) is connected to the first vertical spindle (4) ) is fixedly connected through the lower connecting rod (56). 3. A dual-shaft dual-rotor powder separator according to claim 2, characterized in that: the diameter of the upper ring plate (51) is larger than the diameter of the lower ring plate (52), and the upper rotor blades (53) are shorter on the lower rotor blade (54). 4. A dual-shaft dual-rotor powder separator according to claim 2, characterized in that: the inner shaft (41) and the electric push rod (42) fixed in the first vertical main shaft (4) )connect. 5. A dual-shaft dual-rotor powder separator according to claim 1, characterized in that: the medium and coarse powder pipeline (15) comprises a vertical pipe (151) and an inclined pipe (152), the inclined pipe (152). 152) A horizontal mounting hole (153) is provided at the contact point with the first vertical spindle (4), the horizontal mounting hole (153) is provided with a trapezoidal groove (154) and a sealing felt ring (155), To prevent the leakage of medium and coarse powder. 6. A dual-shaft dual-rotor powder separator according to claim 5, characterized in that: the first vertical main shaft (4) is provided with a plurality of scrapers (43) on the circumference, and the scrapers ( 43) is located above the horizontal mounting hole (153). 7. A dual-shaft dual-rotor powder separator according to claim 1, characterized in that: the second rotor (8) is a squirrel rotor, and a wind guide vane is provided outside the second rotor (8) (10) is fixedly connected with the powder sorting box (1).

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